ST. PETERSBURG, RUSSIA, March 18, 2008: The security experts at Agnitum, the leading firewall provider, today announced the availability of Outpost Antivirus Pro, offering an extended security arsenal to protect users against malware infection, identity theft, and websites that may be hosting malicious content. In a new twist, the company is offering Outpost Antivirus Pro at a flat annual subscription fee rather than the license-plus-annual renewals model that has become the industry standard.